Symptom Chart
Pinpoint Tests
PINPOINT TEST A: THE WIPERS ARE INOPERATIVE — FRONT WIPERS
B1436 Wiper High/Low Speed Relay Coil Circuit Short to Battery FEM GO to Pinpoint Test G.
B1438 Wiper Mode Select Switch Circuit Failure FEM GO to Pinpoint Test A.
B1446 Wiper Park Sense Circuit Failure FEM GO to Pinpoint Test D.
B1448 Wiper Park Sense Circuit Short to Battery FEM GO to Pinpoint Test D.
B1450 Wiper Wash/Delay Switch Circuit Failure FEM GO to Pinpoint Test A.
B1460 Wiper Washer Pump Motor Relay Coil Circuit Short to Battery FEM GO to Pinpoint Test E.
B1482 Wiper Washer Fluid Level Sensor Circuit Short to Ground FEM REFER to Section 413-01.
B1611 Wiper Rear Mode Select Switch Circuit Failure FEM GO to Pinpoint Test B.
Symptom Chart
Condition Possible Sources Action
No communication with the module — front electronic module (FEM)
Battery junction box (BJB) fuse(s).
2 (10A).
Circuitry.
FEM.
REFER to Section 419-
10.
The wipers are inoperative — front wipers
Battery junction box (BJB) fuse 6
(30A).
Relay(s).
Switch.
Circuitry.
Wiper motor.
Front electronic module (FEM).
GO to Pinpoint Test A.
The wipers are inoperative — rear wipers
Battery junction box (BJB) fuse 7
(25A).
Relay(s).
Switch.
Circuitry.
Wiper motor.
Front electronic module (FEM).
GO to Pinpoint Test B.
The wipers stay on continuously — front or rear
Relay.
Switch.
Circuitry.
Front electronic module (FEM).
GO to Pinpoint Test C.
The intermittent wiper speed does not operate correctly
Switch.
Circuitry.
Front electronic module (FEM).
GO to Pinpoint Test D.
The washer pump is inoperative — front and rear
Battery junction box (BJB) fuse(s).
6 (30A).
7 (25A).
Switch.
Circuitry.
Motor.
Front electronic module (FEM).
GO to Pinpoint Test E.
The washer pump is inoperative — front and rear washers stay on
continuously
Switch.
Circuitry.
Front electronic module (FEM).
GO to Pinpoint Test F.
The high/low wiper speeds do not operate correctly
Switch.
Circuitry.
Front electronic module (FEM).
GO to Pinpoint Test G.
Test Step Result / Action to Take
A1 USE THE RECORDED RESULTS FROM THE FEM SELF-TEST
Use the recorded results from the FEM self-test.
Are any DTCs recorded?
Yes
If DTC B1431, GO to A2 .
If DTC B1432, GO to A4 .
If DTC B1438, GO to A6 .
If DTC B1450, GO to A9 .
No
GO to A12.
A2 CHECK THE WIPER ON/OFF RELAY — USE THE FEM ACTIVE COMAND WIPER RLY
Enter the following diagnostic mode on the scan tool: FEM active command WIPER RLY.
Disconnect: Windshield Wiper ON/OFF Relay.
Trigger the FEM active command WIPER RLY to ON.
Measure the resistance between windshield wiper ON/OFF relay pin 2, circuit 1318 (DG/WH), harness side and ground.
Yes
INSTALL a new windshield wiper
ON/OFF relay. REPEAT the FEM self-
test. CLEAR the DTCs.
No
GO to A3.
Page 2 of 172003 Windstar Workshop Manual
8/17/2010http://www.fordtechservice.dealerconnection.com/pubs/con...
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